Plant Transcription factor database - Universität Potsdam
version: 3.0

Oryza sativa subsp. indica CPP Family


Cvitanich et al. 2000:Nodulin genes are specifically expressed in the nitrogen-fixing root nodules. We have identified a novel type of DNA-binding protein (CPP1) interacting with the promoter of the soybean leghemoglobin gene Gmlbc3. The DNA-binding domain of CPP1 contains two similar Cys-rich domains with 9 and 10 Cys, respectively. Genes encoding similar domains have been identified in Arabidopsis thaliana, Caenorhabditis elegans, the mouse, and human. The domains also have some homology to a Cys-rich region present in some polycomb proteins. The cpp1 gene is induced late in nodule development and the expression is confined to the distal part of the central infected tissue of the nodule. A constitutively expressed cpp1 gene reduces the expression of a Gmlbc3 promoter-gusA reporter construct in Vicia hirsuta roots. These data therefore suggest that CPP1 might be involved in the regulation of the leghemoglobin genes in the symbiotic root nodule.

Members of this family
  SHOULD possess CXC domain

Domain alignments

This family is also present in:


There are 11 gene models in this family

Gene modelDescriptionDomains
OsIBCD003378 Chr01_5241,1875,,,1,1875, CXC
OsIBCD005842 Chr02_1658,1536,,,1,1536, CXC TruB_N
OsIBCD011324 Chr03_4365,1908,,,1,1908, CXC
OsIBCD013370 Chr04_1097,609,,,1,609, CXC
OsIBCD018562 Chr05_4047,1158,,,1,1158, CXC
OsIBCD019048 Chr05_4736,645,,,1,645, CXC
OsIBCD020437 Chr06_2094,1416,,,1,1416, CXC
OsIBCD022514 Chr07_623,3189,,,1,3189, CXC
OsIBCD026298 Chr08_2762,1761,,,1,1761, CXC
OsIBCD035594 Chr12_3064,1173,,,1,1173, CXC
OsIBCD035596 Chr12_3066,2247,,,1,2247, CXC

General references

Cvitanich, C; Pallisgaard, N; Nielsen, KA; Hansen, AC; Larsen, K; Pihakaski-Maunsbach, K; Marcker, KA; Jensen, EO. 2000. CPP1, a DNA-binding protein involved in the expression of a soybean leghemoglobin c3 gene. Proc. Natl. Acad. Sci. U.S.A. 97(14):8163-8 PUBMEDID:10859345